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:: Volume 11, Issue 4 (1-2010) ::
علوم زراعی 2010, 11(4): 367-380 Back to browse issues page
Effect of plant density and mixing ratio on crop yield in sweet corn (Zea mays L. var Saccharata) and mungbean (Vigna radiata L.) intercropping
Abstract:   (7505 Views)
To evaluate crop yield, shelled kernel for conserving and determining the forage production of sweet corn (Zea mays L. var Saccharata) in pure stand and intercopped with mungbean (Vigna radiata L.), a field experiment was conducted in Varamin region, east Tehran, Iran in 2006 summer cropping season. Experiment was carried out in a split plot arrangement in a randomized complete blocks design with four replications. Plant density at three levels including 6, 8 and 10 plant.m-2 for sweet corn, cultivar S.C.403 and 10, 20 and 30 plant.m-2 for mungbean cultivar, Partow were assigned to main plots and five mixing ratios [(P1) = 0:100, (P2) = 25:75, (P3) = 50:50, (P4) = 75:25, (P5) = 100:0 for sweet corn:mungbean, respectively] were randomized in subplots. Quantitative attributes such as plant height, sucker numbers, Leaf Area Index (LAI), dry matter partitioningn in different plant organs were measured and recorded in the soft dough stage in sweet corn. Furthermore, the ear yield, ear for conserving and yield components of sweet corn and mungbean were also measured and recorded. Results showed that plant density had no significant effect on concerned traits, however, the effect of mixing ratio was significant (P<0.01). Therefore, the mixing ratio of 75:25 (sweet corn:mungbean) could be introduced as the superior mixing ratio, because it produced maximum amount of total biomass in sweet corn as well as forage yield, yield and yield components of ear in intercropping. Regarding the intercropping profitability indices, the mixing ratio of 75:25 (sweet corn:mungbean) in low density (D1P2) with LER=1.03 for total crop yield before ear harvesting and and LER=1.09 for total forage yield after removing the ears, was more profitable than sweet corn or mungbean monoculture. Therfore, sweet corn:mungbean intercropping would be a reasonable field management startegy to fill the time gap between two sequential cereal crops in regions with warm summer similar to this experimental site.
Keywords: Forage yield, Intercropping, Mixing ratio, Mungbean, Plant density and Sweet corn.
Full-Text [PDF 253 kb]   (1508 Downloads)    
Type of Study: Scientific & Research | Subject: Special
Received: 2015/02/22 | Accepted: 2015/02/22 | Published: 2015/02/22
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Effect of plant density and mixing ratio on crop yield in sweet corn (Zea mays L. var Saccharata) and mungbean (Vigna radiata L.) intercropping. علوم زراعی 2010; 11 (4) :367-380
URL: http://agrobreedjournal.ir/article-1-197-en.html

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Volume 11, Issue 4 (1-2010) Back to browse issues page
نشریه علوم زراعی ایران Iranian Journal of Crop Sciences
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